159 static int drbd_adm_prepare(struct drbd_config_context *adm_ctx,  in drbd_adm_prepare()  argument
166 	memset(adm_ctx, 0, sizeof(*adm_ctx));  in drbd_adm_prepare()
172 	adm_ctx->reply_skb = genlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);  in drbd_adm_prepare()
173 	if (!adm_ctx->reply_skb) {  in drbd_adm_prepare()
178 	adm_ctx->reply_dh = genlmsg_put_reply(adm_ctx->reply_skb,  in drbd_adm_prepare()
182 	if (!adm_ctx->reply_dh) {  in drbd_adm_prepare()
187 	adm_ctx->reply_dh->minor = d_in->minor;  in drbd_adm_prepare()
188 	adm_ctx->reply_dh->ret_code = NO_ERROR;  in drbd_adm_prepare()
190 	adm_ctx->volume = VOLUME_UNSPECIFIED;  in drbd_adm_prepare()
200 		err = nla_put_nohdr(adm_ctx->reply_skb,  in drbd_adm_prepare()
209 			adm_ctx->volume = nla_get_u32(nla);  in drbd_adm_prepare()
212 			adm_ctx->resource_name = nla_data(nla);  in drbd_adm_prepare()
213 		adm_ctx->my_addr = nested_attr_tb[__nla_type(T_ctx_my_addr)];  in drbd_adm_prepare()
214 		adm_ctx->peer_addr = nested_attr_tb[__nla_type(T_ctx_peer_addr)];  in drbd_adm_prepare()
215 		if ((adm_ctx->my_addr &&  in drbd_adm_prepare()
216 		     nla_len(adm_ctx->my_addr) > sizeof(adm_ctx->connection->my_addr)) ||  in drbd_adm_prepare()
217 		    (adm_ctx->peer_addr &&  in drbd_adm_prepare()
218 		     nla_len(adm_ctx->peer_addr) > sizeof(adm_ctx->connection->peer_addr))) {  in drbd_adm_prepare()
224 	adm_ctx->minor = d_in->minor;  in drbd_adm_prepare()
225 	adm_ctx->device = minor_to_device(d_in->minor);  in drbd_adm_prepare()
230 	if (adm_ctx->device)  in drbd_adm_prepare()
231 		kref_get(&adm_ctx->device->kref);  in drbd_adm_prepare()
233 	if (adm_ctx->resource_name) {  in drbd_adm_prepare()
234 		adm_ctx->resource = drbd_find_resource(adm_ctx->resource_name);  in drbd_adm_prepare()
237 	if (!adm_ctx->device && (flags & DRBD_ADM_NEED_MINOR)) {  in drbd_adm_prepare()
238 		drbd_msg_put_info(adm_ctx->reply_skb, "unknown minor");  in drbd_adm_prepare()
241 	if (!adm_ctx->resource && (flags & DRBD_ADM_NEED_RESOURCE)) {  in drbd_adm_prepare()
242 		drbd_msg_put_info(adm_ctx->reply_skb, "unknown resource");  in drbd_adm_prepare()
243 		if (adm_ctx->resource_name)  in drbd_adm_prepare()
249 		if (adm_ctx->resource) {  in drbd_adm_prepare()
250 			drbd_msg_put_info(adm_ctx->reply_skb, "no resource name expected");  in drbd_adm_prepare()
253 		if (adm_ctx->device) {  in drbd_adm_prepare()
254 			drbd_msg_put_info(adm_ctx->reply_skb, "no minor number expected");  in drbd_adm_prepare()
257 		if (adm_ctx->my_addr && adm_ctx->peer_addr)  in drbd_adm_prepare()
258 			adm_ctx->connection = conn_get_by_addrs(nla_data(adm_ctx->my_addr),  in drbd_adm_prepare()
259 							  nla_len(adm_ctx->my_addr),  in drbd_adm_prepare()
260 							  nla_data(adm_ctx->peer_addr),  in drbd_adm_prepare()
261 							  nla_len(adm_ctx->peer_addr));  in drbd_adm_prepare()
262 		if (!adm_ctx->connection) {  in drbd_adm_prepare()
263 			drbd_msg_put_info(adm_ctx->reply_skb, "unknown connection");  in drbd_adm_prepare()
269 	if (adm_ctx->device && adm_ctx->resource &&  in drbd_adm_prepare()
270 	    adm_ctx->device->resource != adm_ctx->resource) {  in drbd_adm_prepare()
272 			adm_ctx->minor, adm_ctx->resource->name,  in drbd_adm_prepare()
273 			adm_ctx->device->resource->name);  in drbd_adm_prepare()
274 		drbd_msg_put_info(adm_ctx->reply_skb, "minor exists in different resource");  in drbd_adm_prepare()
277 	if (adm_ctx->device &&  in drbd_adm_prepare()
278 	    adm_ctx->volume != VOLUME_UNSPECIFIED &&  in drbd_adm_prepare()
279 	    adm_ctx->volume != adm_ctx->device->vnr) {  in drbd_adm_prepare()
281 			adm_ctx->minor, adm_ctx->volume,  in drbd_adm_prepare()
282 			adm_ctx->device->vnr, adm_ctx->device->resource->name);  in drbd_adm_prepare()
283 		drbd_msg_put_info(adm_ctx->reply_skb, "minor exists as different volume");  in drbd_adm_prepare()
288 	if (!adm_ctx->resource) {  in drbd_adm_prepare()
289 		adm_ctx->resource = adm_ctx->device ? adm_ctx->device->resource  in drbd_adm_prepare()
290 			: adm_ctx->connection ? adm_ctx->connection->resource : NULL;  in drbd_adm_prepare()
291 		if (adm_ctx->resource)  in drbd_adm_prepare()
292 			kref_get(&adm_ctx->resource->kref);  in drbd_adm_prepare()
298 	nlmsg_free(adm_ctx->reply_skb);  in drbd_adm_prepare()
299 	adm_ctx->reply_skb = NULL;  in drbd_adm_prepare()
303 static int drbd_adm_finish(struct drbd_config_context *adm_ctx,  in drbd_adm_finish()  argument
306 	if (adm_ctx->device) {  in drbd_adm_finish()
307 		kref_put(&adm_ctx->device->kref, drbd_destroy_device);  in drbd_adm_finish()
308 		adm_ctx->device = NULL;  in drbd_adm_finish()
310 	if (adm_ctx->connection) {  in drbd_adm_finish()
311 		kref_put(&adm_ctx->connection->kref, &drbd_destroy_connection);  in drbd_adm_finish()
312 		adm_ctx->connection = NULL;  in drbd_adm_finish()
314 	if (adm_ctx->resource) {  in drbd_adm_finish()
315 		kref_put(&adm_ctx->resource->kref, drbd_destroy_resource);  in drbd_adm_finish()
316 		adm_ctx->resource = NULL;  in drbd_adm_finish()
319 	if (!adm_ctx->reply_skb)  in drbd_adm_finish()
322 	adm_ctx->reply_dh->ret_code = retcode;  in drbd_adm_finish()
323 	drbd_adm_send_reply(adm_ctx->reply_skb, info);  in drbd_adm_finish()
769 	struct drbd_config_context adm_ctx;  in drbd_adm_set_role()  local
775 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_MINOR);  in drbd_adm_set_role()
776 	if (!adm_ctx.reply_skb)  in drbd_adm_set_role()
786 			drbd_msg_put_info(adm_ctx.reply_skb, from_attrs_err_to_txt(err));  in drbd_adm_set_role()
791 	mutex_lock(&adm_ctx.resource->adm_mutex);  in drbd_adm_set_role()
794 		rv = drbd_set_role(adm_ctx.device, R_PRIMARY, parms.assume_uptodate);  in drbd_adm_set_role()
796 		rv = drbd_set_role(adm_ctx.device, R_SECONDARY, 0);  in drbd_adm_set_role()
798 	mutex_unlock(&adm_ctx.resource->adm_mutex);  in drbd_adm_set_role()
800 	drbd_adm_finish(&adm_ctx, info, rv);  in drbd_adm_set_role()
803 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_set_role()
1490 	struct drbd_config_context adm_ctx;  in drbd_adm_disk_opts()  local
1498 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_MINOR);  in drbd_adm_disk_opts()
1499 	if (!adm_ctx.reply_skb)  in drbd_adm_disk_opts()
1504 	device = adm_ctx.device;  in drbd_adm_disk_opts()
1505 	mutex_lock(&adm_ctx.resource->adm_mutex);  in drbd_adm_disk_opts()
1529 		drbd_msg_put_info(adm_ctx.reply_skb, from_attrs_err_to_txt(err));  in drbd_adm_disk_opts()
1555 		drbd_msg_put_info(adm_ctx.reply_skb,  in drbd_adm_disk_opts()
1618 	mutex_unlock(&adm_ctx.resource->adm_mutex);  in drbd_adm_disk_opts()
1620 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_disk_opts()
1708 	struct drbd_config_context adm_ctx;  in drbd_adm_attach()  local
1725 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_MINOR);  in drbd_adm_attach()
1726 	if (!adm_ctx.reply_skb)  in drbd_adm_attach()
1731 	device = adm_ctx.device;  in drbd_adm_attach()
1732 	mutex_lock(&adm_ctx.resource->adm_mutex);  in drbd_adm_attach()
1777 		drbd_msg_put_info(adm_ctx.reply_skb, from_attrs_err_to_txt(err));  in drbd_adm_attach()
1928 			drbd_msg_sprintf_info(adm_ctx.reply_skb,  in drbd_adm_attach()
2102 	mutex_unlock(&adm_ctx.resource->adm_mutex);  in drbd_adm_attach()
2103 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_attach()
2121 	mutex_unlock(&adm_ctx.resource->adm_mutex);  in drbd_adm_attach()
2123 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_attach()
2145 	struct drbd_config_context adm_ctx;  in drbd_adm_detach()  local
2150 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_MINOR);  in drbd_adm_detach()
2151 	if (!adm_ctx.reply_skb)  in drbd_adm_detach()
2160 			drbd_msg_put_info(adm_ctx.reply_skb, from_attrs_err_to_txt(err));  in drbd_adm_detach()
2165 	mutex_lock(&adm_ctx.resource->adm_mutex);  in drbd_adm_detach()
2166 	retcode = adm_detach(adm_ctx.device, parms.force_detach);  in drbd_adm_detach()
2167 	mutex_unlock(&adm_ctx.resource->adm_mutex);  in drbd_adm_detach()
2169 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_detach()
2343 	struct drbd_config_context adm_ctx;  in drbd_adm_net_opts()  local
2352 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_CONNECTION);  in drbd_adm_net_opts()
2353 	if (!adm_ctx.reply_skb)  in drbd_adm_net_opts()
2358 	connection = adm_ctx.connection;  in drbd_adm_net_opts()
2359 	mutex_lock(&adm_ctx.resource->adm_mutex);  in drbd_adm_net_opts()
2374 		drbd_msg_put_info(adm_ctx.reply_skb, "net conf missing, try connect");  in drbd_adm_net_opts()
2386 		drbd_msg_put_info(adm_ctx.reply_skb, from_attrs_err_to_txt(err));  in drbd_adm_net_opts()
2456 	mutex_unlock(&adm_ctx.resource->adm_mutex);  in drbd_adm_net_opts()
2458 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_net_opts()
2487 	struct drbd_config_context adm_ctx;  in drbd_adm_connect()  local
2498 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_RESOURCE);  in drbd_adm_connect()
2500 	if (!adm_ctx.reply_skb)  in drbd_adm_connect()
2504 	if (!(adm_ctx.my_addr && adm_ctx.peer_addr)) {  in drbd_adm_connect()
2505 		drbd_msg_put_info(adm_ctx.reply_skb, "connection endpoint(s) missing");  in drbd_adm_connect()
2515 			if (nla_len(adm_ctx.my_addr) == connection->my_addr_len &&  in drbd_adm_connect()
2516 			    !memcmp(nla_data(adm_ctx.my_addr), &connection->my_addr,  in drbd_adm_connect()
2522 			if (nla_len(adm_ctx.peer_addr) == connection->peer_addr_len &&  in drbd_adm_connect()
2523 			    !memcmp(nla_data(adm_ctx.peer_addr), &connection->peer_addr,  in drbd_adm_connect()
2531 	mutex_lock(&adm_ctx.resource->adm_mutex);  in drbd_adm_connect()
2532 	connection = first_connection(adm_ctx.resource);  in drbd_adm_connect()
2552 		drbd_msg_put_info(adm_ctx.reply_skb, from_attrs_err_to_txt(err));  in drbd_adm_connect()
2568 	mutex_lock(&adm_ctx.resource->conf_update);  in drbd_adm_connect()
2572 		mutex_unlock(&adm_ctx.resource->conf_update);  in drbd_adm_connect()
2583 	connection->my_addr_len = nla_len(adm_ctx.my_addr);  in drbd_adm_connect()
2584 	memcpy(&connection->my_addr, nla_data(adm_ctx.my_addr), connection->my_addr_len);  in drbd_adm_connect()
2585 	connection->peer_addr_len = nla_len(adm_ctx.peer_addr);  in drbd_adm_connect()
2586 	memcpy(&connection->peer_addr, nla_data(adm_ctx.peer_addr), connection->peer_addr_len);  in drbd_adm_connect()
2604 	mutex_unlock(&adm_ctx.resource->conf_update);  in drbd_adm_connect()
2617 	mutex_unlock(&adm_ctx.resource->adm_mutex);  in drbd_adm_connect()
2618 	drbd_adm_finish(&adm_ctx, info, rv);  in drbd_adm_connect()
2626 	mutex_unlock(&adm_ctx.resource->adm_mutex);  in drbd_adm_connect()
2628 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_connect()
2700 	struct drbd_config_context adm_ctx;  in drbd_adm_disconnect()  local
2707 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_CONNECTION);  in drbd_adm_disconnect()
2708 	if (!adm_ctx.reply_skb)  in drbd_adm_disconnect()
2713 	connection = adm_ctx.connection;  in drbd_adm_disconnect()
2719 			drbd_msg_put_info(adm_ctx.reply_skb, from_attrs_err_to_txt(err));  in drbd_adm_disconnect()
2724 	mutex_lock(&adm_ctx.resource->adm_mutex);  in drbd_adm_disconnect()
2726 	mutex_unlock(&adm_ctx.resource->adm_mutex);  in drbd_adm_disconnect()
2728 		drbd_adm_finish(&adm_ctx, info, rv);  in drbd_adm_disconnect()
2733 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_disconnect()
2755 	struct drbd_config_context adm_ctx;  in drbd_adm_resize()  local
2766 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_MINOR);  in drbd_adm_resize()
2767 	if (!adm_ctx.reply_skb)  in drbd_adm_resize()
2772 	mutex_lock(&adm_ctx.resource->adm_mutex);  in drbd_adm_resize()
2773 	device = adm_ctx.device;  in drbd_adm_resize()
2786 			drbd_msg_put_info(adm_ctx.reply_skb, from_attrs_err_to_txt(err));  in drbd_adm_resize()
2878 	mutex_unlock(&adm_ctx.resource->adm_mutex);  in drbd_adm_resize()
2880 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_resize()
2891 	struct drbd_config_context adm_ctx;  in drbd_adm_resource_opts()  local
2896 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_RESOURCE);  in drbd_adm_resource_opts()
2897 	if (!adm_ctx.reply_skb)  in drbd_adm_resource_opts()
2902 	res_opts = adm_ctx.resource->res_opts;  in drbd_adm_resource_opts()
2909 		drbd_msg_put_info(adm_ctx.reply_skb, from_attrs_err_to_txt(err));  in drbd_adm_resource_opts()
2913 	mutex_lock(&adm_ctx.resource->adm_mutex);  in drbd_adm_resource_opts()
2914 	err = set_resource_options(adm_ctx.resource, &res_opts);  in drbd_adm_resource_opts()
2920 	mutex_unlock(&adm_ctx.resource->adm_mutex);  in drbd_adm_resource_opts()
2923 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_resource_opts()
2929 	struct drbd_config_context adm_ctx;  in drbd_adm_invalidate()  local
2933 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_MINOR);  in drbd_adm_invalidate()
2934 	if (!adm_ctx.reply_skb)  in drbd_adm_invalidate()
2939 	device = adm_ctx.device;  in drbd_adm_invalidate()
2945 	mutex_lock(&adm_ctx.resource->adm_mutex);  in drbd_adm_invalidate()
2968 	mutex_unlock(&adm_ctx.resource->adm_mutex);  in drbd_adm_invalidate()
2971 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_invalidate()
2978 	struct drbd_config_context adm_ctx;  in drbd_adm_simple_request_state()  local
2981 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_MINOR);  in drbd_adm_simple_request_state()
2982 	if (!adm_ctx.reply_skb)  in drbd_adm_simple_request_state()
2987 	mutex_lock(&adm_ctx.resource->adm_mutex);  in drbd_adm_simple_request_state()
2988 	retcode = drbd_request_state(adm_ctx.device, mask, val);  in drbd_adm_simple_request_state()
2989 	mutex_unlock(&adm_ctx.resource->adm_mutex);  in drbd_adm_simple_request_state()
2991 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_simple_request_state()
3006 	struct drbd_config_context adm_ctx;  in drbd_adm_invalidate_peer()  local
3010 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_MINOR);  in drbd_adm_invalidate_peer()
3011 	if (!adm_ctx.reply_skb)  in drbd_adm_invalidate_peer()
3016 	device = adm_ctx.device;  in drbd_adm_invalidate_peer()
3022 	mutex_lock(&adm_ctx.resource->adm_mutex);  in drbd_adm_invalidate_peer()
3048 	mutex_unlock(&adm_ctx.resource->adm_mutex);  in drbd_adm_invalidate_peer()
3051 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_invalidate_peer()
3057 	struct drbd_config_context adm_ctx;  in drbd_adm_pause_sync()  local
3060 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_MINOR);  in drbd_adm_pause_sync()
3061 	if (!adm_ctx.reply_skb)  in drbd_adm_pause_sync()
3066 	mutex_lock(&adm_ctx.resource->adm_mutex);  in drbd_adm_pause_sync()
3067 	if (drbd_request_state(adm_ctx.device, NS(user_isp, 1)) == SS_NOTHING_TO_DO)  in drbd_adm_pause_sync()
3069 	mutex_unlock(&adm_ctx.resource->adm_mutex);  in drbd_adm_pause_sync()
3071 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_pause_sync()
3077 	struct drbd_config_context adm_ctx;  in drbd_adm_resume_sync()  local
3081 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_MINOR);  in drbd_adm_resume_sync()
3082 	if (!adm_ctx.reply_skb)  in drbd_adm_resume_sync()
3087 	mutex_lock(&adm_ctx.resource->adm_mutex);  in drbd_adm_resume_sync()
3088 	if (drbd_request_state(adm_ctx.device, NS(user_isp, 0)) == SS_NOTHING_TO_DO) {  in drbd_adm_resume_sync()
3089 		s = adm_ctx.device->state;  in drbd_adm_resume_sync()
3097 	mutex_unlock(&adm_ctx.resource->adm_mutex);  in drbd_adm_resume_sync()
3099 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_resume_sync()
3110 	struct drbd_config_context adm_ctx;  in drbd_adm_resume_io()  local
3114 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_MINOR);  in drbd_adm_resume_io()
3115 	if (!adm_ctx.reply_skb)  in drbd_adm_resume_io()
3120 	mutex_lock(&adm_ctx.resource->adm_mutex);  in drbd_adm_resume_io()
3121 	device = adm_ctx.device;  in drbd_adm_resume_io()
3158 	mutex_unlock(&adm_ctx.resource->adm_mutex);  in drbd_adm_resume_io()
3160 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_resume_io()
3813 	struct drbd_config_context adm_ctx;  in drbd_adm_get_status()  local
3817 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_MINOR);  in drbd_adm_get_status()
3818 	if (!adm_ctx.reply_skb)  in drbd_adm_get_status()
3823 	err = nla_put_status_info(adm_ctx.reply_skb, adm_ctx.device, NULL);  in drbd_adm_get_status()
3825 		nlmsg_free(adm_ctx.reply_skb);  in drbd_adm_get_status()
3829 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_get_status()
4016 	struct drbd_config_context adm_ctx;  in drbd_adm_get_timeout_type()  local
4021 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_MINOR);  in drbd_adm_get_timeout_type()
4022 	if (!adm_ctx.reply_skb)  in drbd_adm_get_timeout_type()
4028 		adm_ctx.device->state.pdsk == D_OUTDATED ? UT_PEER_OUTDATED :  in drbd_adm_get_timeout_type()
4029 		test_bit(USE_DEGR_WFC_T, &adm_ctx.device->flags) ? UT_DEGRADED :  in drbd_adm_get_timeout_type()
4032 	err = timeout_parms_to_priv_skb(adm_ctx.reply_skb, &tp);  in drbd_adm_get_timeout_type()
4034 		nlmsg_free(adm_ctx.reply_skb);  in drbd_adm_get_timeout_type()
4038 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_get_timeout_type()
4044 	struct drbd_config_context adm_ctx;  in drbd_adm_start_ov()  local
4049 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_MINOR);  in drbd_adm_start_ov()
4050 	if (!adm_ctx.reply_skb)  in drbd_adm_start_ov()
4055 	device = adm_ctx.device;  in drbd_adm_start_ov()
4064 			drbd_msg_put_info(adm_ctx.reply_skb, from_attrs_err_to_txt(err));  in drbd_adm_start_ov()
4068 	mutex_lock(&adm_ctx.resource->adm_mutex);  in drbd_adm_start_ov()
4081 	mutex_unlock(&adm_ctx.resource->adm_mutex);  in drbd_adm_start_ov()
4083 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_start_ov()
4090 	struct drbd_config_context adm_ctx;  in drbd_adm_new_c_uuid()  local
4097 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_MINOR);  in drbd_adm_new_c_uuid()
4098 	if (!adm_ctx.reply_skb)  in drbd_adm_new_c_uuid()
4103 	device = adm_ctx.device;  in drbd_adm_new_c_uuid()
4109 			drbd_msg_put_info(adm_ctx.reply_skb, from_attrs_err_to_txt(err));  in drbd_adm_new_c_uuid()
4114 	mutex_lock(&adm_ctx.resource->adm_mutex);  in drbd_adm_new_c_uuid()
4159 	mutex_unlock(&adm_ctx.resource->adm_mutex);  in drbd_adm_new_c_uuid()
4161 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_new_c_uuid()
4166 drbd_check_resource_name(struct drbd_config_context *adm_ctx)  in drbd_check_resource_name()  argument
4168 	const char *name = adm_ctx->resource_name;  in drbd_check_resource_name()
4170 		drbd_msg_put_info(adm_ctx->reply_skb, "resource name missing");  in drbd_check_resource_name()
4176 		drbd_msg_put_info(adm_ctx->reply_skb, "invalid resource name");  in drbd_check_resource_name()
4194 	struct drbd_config_context adm_ctx;  in drbd_adm_new_resource()  local
4199 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, 0);  in drbd_adm_new_resource()
4200 	if (!adm_ctx.reply_skb)  in drbd_adm_new_resource()
4209 		drbd_msg_put_info(adm_ctx.reply_skb, from_attrs_err_to_txt(err));  in drbd_adm_new_resource()
4213 	retcode = drbd_check_resource_name(&adm_ctx);  in drbd_adm_new_resource()
4217 	if (adm_ctx.resource) {  in drbd_adm_new_resource()
4220 			drbd_msg_put_info(adm_ctx.reply_skb, "resource exists");  in drbd_adm_new_resource()
4228 	connection = conn_create(adm_ctx.resource_name, &res_opts);  in drbd_adm_new_resource()
4243 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_new_resource()
4256 	struct drbd_config_context adm_ctx;  in drbd_adm_new_minor()  local
4260 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_RESOURCE);  in drbd_adm_new_minor()
4261 	if (!adm_ctx.reply_skb)  in drbd_adm_new_minor()
4267 		drbd_msg_put_info(adm_ctx.reply_skb, "requested minor out of range");  in drbd_adm_new_minor()
4271 	if (adm_ctx.volume > DRBD_VOLUME_MAX) {  in drbd_adm_new_minor()
4272 		drbd_msg_put_info(adm_ctx.reply_skb, "requested volume id out of range");  in drbd_adm_new_minor()
4279 	if (adm_ctx.device) {  in drbd_adm_new_minor()
4286 	mutex_lock(&adm_ctx.resource->adm_mutex);  in drbd_adm_new_minor()
4287 	retcode = drbd_create_device(&adm_ctx, dh->minor);  in drbd_adm_new_minor()
4318 	mutex_unlock(&adm_ctx.resource->adm_mutex);  in drbd_adm_new_minor()
4320 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_new_minor()
4363 	struct drbd_config_context adm_ctx;  in drbd_adm_del_minor()  local
4366 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_MINOR);  in drbd_adm_del_minor()
4367 	if (!adm_ctx.reply_skb)  in drbd_adm_del_minor()
4372 	mutex_lock(&adm_ctx.resource->adm_mutex);  in drbd_adm_del_minor()
4373 	retcode = adm_del_minor(adm_ctx.device);  in drbd_adm_del_minor()
4374 	mutex_unlock(&adm_ctx.resource->adm_mutex);  in drbd_adm_del_minor()
4376 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_del_minor()
4412 	struct drbd_config_context adm_ctx;  in drbd_adm_down()  local
4419 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_RESOURCE);  in drbd_adm_down()
4420 	if (!adm_ctx.reply_skb)  in drbd_adm_down()
4425 	resource = adm_ctx.resource;  in drbd_adm_down()
4434 				drbd_msg_put_info(adm_ctx.reply_skb, "failed to demote");  in drbd_adm_down()
4441 			drbd_msg_put_info(adm_ctx.reply_skb, "failed to disconnect");  in drbd_adm_down()
4450 			drbd_msg_put_info(adm_ctx.reply_skb, "failed to detach");  in drbd_adm_down()
4460 			drbd_msg_put_info(adm_ctx.reply_skb, "failed to delete volume");  in drbd_adm_down()
4469 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_down()
4475 	struct drbd_config_context adm_ctx;  in drbd_adm_del_resource()  local
4479 	retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_RESOURCE);  in drbd_adm_del_resource()
4480 	if (!adm_ctx.reply_skb)  in drbd_adm_del_resource()
4484 	resource = adm_ctx.resource;  in drbd_adm_del_resource()
4490 	drbd_adm_finish(&adm_ctx, info, retcode);  in drbd_adm_del_resource()